Propeller mechanism



Ust. 6, 193i.

E. COOPER PROPELLER MECHANI SM Filed May 9. 1928 Patented ct. 6, 1931i l UNITED STATES ERNEST 'COOIPEIL OF SIIJIDLERfQKQAHOMA n PROPELLER MEcHAnsM Application 1ed i May 9,

This invention relates to propeller means for air craft whereby a quick take-od is assured and the flight maintained at a mateyrial saving in fuel and wear on the moving aparts. The invention disposes propellers outwardly froman axis and mounts them in a manner to rotate about Vtheir respective axles and travel ina circular path, the axes of the proy pellers being inclined to the circular path in which the propellers travel.

The invention contemplates a mount which is adapted to receive a rotary movement, propellers thereon to yrevolve ytherewith and sus- 15 ceptible of independent rotation, and a planetary gearing and connections to impart the two-fold movement to the propellers.

While the drawings illustrate a preferred embodiment ofthe invention, it is to be understood that in adapting the means to meet specific needs and requirements, the design may be varied and such other changes in the minor details of construction may be resorted to within the scope of the invention as '25 claimed, without departing from the spirit thereof.

y For a full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which,-

Figure 1 is a top plan view of a propelling mechanism embodyingthe invention.

Figure 2 is an enlarged fragmentary sectional view. l

Figure 3 is` an enlarged detail sectional view on the line 3-3 of Figure 2.

Corresponding and like parts are referred to in the following description and designat ed in the several views of the drawings by like reference characters.

f The numeral 1 denotes the body or other framework or structure of a flying machine of any type, and 2 is the .drive shaft. A sleeve 3, or other type of bearing, for the drive shaft 2 is bolted, or otherwise made fast, to the supporting structure 1. A gear wheel 4 is keyed, or otherwise secured, to the fixed bearing 3. A mount is connected to the drive shaft 2 in any determinate way so as torotate therewith andis supported by the moving parts.

1928. Serial N0. 276,445.

bearing 3 on which itis free to rotate. This mount includes a housing 5 and arms 6 projecting outwardly from the housing. A shaft 7 is mounted in each of the arms 6 and a gear wheel 8 fast to the inner end of each of the 55 shafts is in mesh with the teeth of the gear wheell 4. A -gear wheel 9 is fast to the outer end of each of the shafts 7 and is in mesh with a companion gear wheel 1() fast to the inner end of a tubular shaft 11. A propeller 12 is fast Yto the outer end of the tubular shaft 11. An axle 13 supports the tubular shaft 11 and is fast to a housing 14 at the outer end of each of the arms 6. The housing 141: encloses the axle 13 and coacting gears 65 9 and 10 and access is had thereto throughy an opening which is normally closed by means of a plate l5.

The mount rotates in a plane perpendicular to the drive shaft- 2 and since the gear wheel 7o 4 is fixed and the gear wheels 8 are in mesh` therewith it follows that the shafts 7 receive an independent rotary movement which is transmitted to the respective propellers by means of the gearing 9 and 10. The axles 75 13 are oppositely inclined at an angle approximating seventy-five degrees, hence the propellers are inclined to the plane of travel ofthe mount. The planetary gearing, (including the sun gear 4 and the planet gears 80 8, may be of any type best adapted for the particular application of the invention. Itis to be understood that suitable anti-friction bearings will be provided to minimize the wear and friction.

A flying machine equipped with propellers embodying the invention is adapted to takeoff quickly and to conserve energy, both in the consumption of fuel and in the wear of 90 Having thus described the invention, I claim:

Propelling mechanism comprising a fixed sleeve, a drive shaft mounted in the sleeve and projecting beyond the ends thereof, a housing rotatable on the sleeve and connected with the shaft to rotate therewith, hollow arms projecting outwardly from the housing and revoluble therewith, a fixed gear wheel within the housing secured to the said sleeve,

. shftsmounted the hollow arms and geared at their inner ends tothe Jxed gear Wheel, a housing at the outerend of each of the hollow arms, oppositely inclined axles mount-V ed in the housings, tubular shafts'loose on the `axles and geared at their inner ends to the propellers securedftm the outer end ofi' tliel tubular shaftsend sideoftheerms.k Y, Y

Y In testimony Whereof'Taiiz my 'signalture;y

ERNEST'COUPE-lila.vk lin-5115.; Y

ydisposed upon tlieMsaine.r

KAL

T45 n i 

